Method and apparatus for making spiral springs



Nov. 9, 1943. c. KIRCHNER METHOD AND APPARATUS FOR MAKING SPIRAL SPRINGS Filed Aug. 11, 1941 15 Sheets-Sheet 1 ATTORNEY Nov. 9, 1943. K|RHNER 2,333,797

METHOD AND APPARATUS FOR MAKING SPIRAL SPRINGS Filed Aug. 11, 1941 15 Sheets-Sheet 2 'a/LZ INVENTOR 6 ATTORNEY 1943- c. KIRCHNER 2,333,797

METHOD AND APPARATUS FOR MAKING SPIRAL SPRINGS Filed Aug. 11, 1941 15 Sheets-Sheet 3 6% IN VENTOR C. KIRCHNER Nov. 9, 1943.

METHOD AND APPARATUS FOR MAKING SPIRAL SPRINGS Filed Aug. 11, 1941 15 Sheets-Sheet 4 mmw m w mx a/za 1M1 INVENTOR Mm Wu/u Nov. 9; 1943.

c. KIRCHNE R 3 2,333,797 METHOD AND APPARATUS FOR MAKING SPIRAL SPRINGS Filed Aug. 11,' 19 41 15 Sheets-Sheet 5 J" J 9 F5 IN VENTOR I 2 ATTORNEY Nov. 9, 1943.

c. KIRCHNER 2,333,797 METHOD AND APPARATUS FOR MAKING SPIRAL SPRINGS Filed Aug. 11, 1941 15 Sheets-Sheet 6 INVENTOR 6M A aiw A TTOHNEY 1943- c. KIRCHNER 2,333,797

METHOD AND APPARATUS FOR MAKING SPIRAL SPRINGS Filed Aug. 11, 1941 15 Sheets-Sheet 7 In I 6% 7WNVENTOR BY Jim W 1% ATTORNEY Nov. 9, 1943. c. KIRCHNER 2,333,797

METHOD AND APPARATUS FOR MAKING SPIRAL SPRINGS Filed Augf 11, 1941 15 Sheets-Sheet 8 6% BY Mm iii! ATTORNEY Nov. 9, 1943. c. KIRCHNER 2,333,797

METHOD AND APPARATUS FOR MAKING SPIRAL SPRINGS Filed Aug. 11, 1941 15 Sheets-Sheet 9 he] I v /27/P.s"' s 4% BY MW 2 ATTORNEY Nov. 9, 1943. c. KIRCHNER 1 2,333,797

METHOD AND APPARATUS FOR MAKING SPIRAL SPRINGS Filed Aug 11, 1941 15 Sheets-Sheet 10 B MW WM M ATTORNEY C KIRCHNER Nov. 9,1943;

METHOD AND APPARATUS FOR MAKING SPIRAL SPRINGS 15 Sheets-Sheet 11 Filed Aug. 11, 1941 6 7 INVENTOR a/LZ d/e/anm ffw ATTORNEY Nov. 9, 1943. KIRCHN'ER 2,333,797

METHOD AND APPARATUS FOR MAKING SPIRAL SPRINGS Filed Aug. 11, 1941 15 Sheets-Sheet 12 INVENTOR BY MW 7% ATTORNEY NOV. 9, 1943. c N R 2,333,797

METHOD AND APPARATUS FOR MAKING SPIRAL SPRINGS I Filed Aug. 11, 1941 15 Sheets-Sweat 13 *7/6 ATTORNEY N 9, 1943- c. KIRCHNER 2,333,797

METHCD AND APPARATUS FOR MAKING SPIRAL SPRINGS Filed Aug. 11, 1941 15 Sheets-Sheet 14 3 3 5 W 744 @zm INVEIYTQR M ATTORNEY Nov. 9, 1943. c. KIRCHNER 2,333,797

- METHOD AND APPARATUS FOR MAKING SPIRAL SPRINGS Filed Aug. 11, 1941 15 Sheets-Sheet 15 6 M INVENTOR 1W ATTORNEY conformations and sizes.

Patented Nov. 9, 1943 i i i 2,223,797 METHOD AND APPARATUS FOR MAKING sPInAL SPRINGS I g Carl Kirchner, Carthage, Mo., assignolp to-Leggett and Platt Spring Bed andManufaoturing Gompany, Carthage, Mo., a corporation Missouri;

; Application Augiisi 11, 1941; Serial No. 406,362

,goi. 140-48) 17 Claims.

My inventionrel'ates to improvements in methods and apparatus for making spiral springs.

It relates to the making of the singleQt double cone type, having one or both ends knotted, and which springs are commonly used in mattresses, f

seats and seat backs. U Oneobject of my invention is the provision of a novel method and apparatu for transfer+ ring a spiralspring to a location where one end is to be knotted.

[which difiernruch from each other in diameters,

lead andlength, which requirement is eliminated with m improvedmeans fortransference or the springs.

Another object' of m invention is the provision of a novel method and apparatus for transferring a spiral spring consecutively to two locationswhere its ends are to be consecutively knotted.

Another object is the provision of a novel method and apparatus by which thespiral spring is madeto roll or slide self supported on a path} way to a location where oneend isto be knotted. Q

Another object is the, provision? of a novel method and apparatus by which the spiral spring is made to roll or slide on a pathway to two cations consecutively at which its ends are to be consecutively knotted. v

Anotherobject of my invention is 'the' provision of novel means'for frictionally engaging and turning a spring on its axis to a proper po sition for knotting one end of the spring,

yMy improved-method of transferring the spiral springs is madeadaptable by my improved meth od or positioning the springafter the transferring-means'has deposited itin a knotting loca- When th'e j spr g is-to be knotted, its free end,

which is-fto be knotted, must be properly positio'ned for engagement by the knotting mochanism. *With my} improved positioning means, the

' 'spiralfspring isfrictionally engaged and rotated 'on its axis "until th'fre'e end of the end coil strikes an abutment, thu properly locatirigthe spring for knotting'. It is,thereforeyimmaterial in what "point in the circumference of the end coil is disposedthe endof thecoilfas the releasjable frictional rotation of the spring on its axis by thepositioning means, in"eombination' with A further object is the provision of novel;

means for consecutively frictionally engaging and turning a spring on itsaxis to two positions for consecutively knotting the ends of the spring.

Still another object of my invention is the provision of an apparatus'of the kind described,

which is, considering the functions whichit auto matically performs, relatively simple, durable, not likely to get out of order, and which is very efiicient in its operation.

One advantage obtained by the employment of my improved novel means for transferring the spiral spring from one location tovanother by causing the spring to roll or slide self supported on a pathway, is that the same 'transferring means maybe employed, without alteration of any of its parts for spiral spring having, within broad limitations, difierentlengths, different diameters of coils, and diiferent leads of the coils, thus adapting the machine orapparatus to a very large variety of spiral springs of different In,'many machines or apparatusof this character, now onthe market, or in use. the spiral springs are transported by grippers which embrace and carry the springs, and difierent shapes and sizes of grippers mustbeprovidedfor'springs {the machine. i a

the abutment, will properly position thespi'ing.

The novel features ofmy invention arehereinafter fully described and claimed. In the accompanying drawings, which illustrate the preferred embodiment of my invention, 'Fig. 1 isa longitudinal vertical sectional View, enlarged and parts; omitted, or the front portion of the machine, on the plane of the line of Fig 4, showing the paddles inpositibdiofehgagement with that-cone springs onthe pathy- II 1 A Fig. 1s a} side view, partly in elevation, and

" parts omitted, of a rear portion of themachine.

Figgd is'ia plan view of a rear portion of the machine,""with" some parts omitted and others broken away.

machine, some parts beingomitted.

- Eigiii isa reduced'side elevationof themafFigr sa planfview of a front portion of the it r se is a plan view ora'poruon of the inechanis'm whichdrives parts or the mechanism of- Figaflis asectionon the"1ine'"'| l 'OfFig. 6. 'Fig.8isan enlargedcross section on the plane of. the line 8 -8 'JofFig. 4', parts being omitted and partsbroken away.

, Fig. 9 is an'in'side elevation view of one ofthe "-knotting mechanisms, with the parts in the knot- -tingpositi0ns, parts being omitted and parts "being broken away.

Fig."l0'-'is--an outer side elevation of a portion of-the machine, including portionsofithe spinchine, parts being omitted, and partsfbroken "away."

parts broken away. I Fig. leis an enlarged innerside elevation ofof. the cone spring, and .tionof the knot.

parts of the mechanism shown in Fig. 12, on the plane of the line i3|3 of Fig. 11,showing the knotter he'adlowered, parts being omitted and one of the cone spring receiving sockets, showing i the cone spring positioned therein, and'held by the finger, a portion of the knotter head and the knotting gear, being shown in vertical section,

and in the lowered position.

Fig. is a'view similartoFig, 14,.sh0wing the same partsas in F-ig,..lfl the knotter -head being shown raised, and. the limiting gear engaged witharid having bent the end portion of the end'coil justprior to the comple Fig. 16 is aniend: .ofpneof the twoknotting mechanisms; Fig. 17

' an elevation view of the other end of said knotting gear; andli'ig. l8 asideelevationof theggearr Fig- 19 is a reduced view partly diagrammatic, partly in vertical section, andpartly in side elevation of,the rnechanism foractuatingthe two bars which -respectively.,ejectthe cone springs fromithe cone spring receiving sockets, after the knotting operation. r I 20-is areduced view, partly diagrammatic, partly in elevation, and partly in vertical section of the mechanismior depressing thetwo stop plates, shown broken away and in solid lines in v ,theraised-position; and lowered in the dotted position. r ;Fig. 21 is a reduced view, partlyin side eleva tion, partly inverticaI section of a portion of the mechanism whichjio-rces the two sizing ba rs into a engagement with thetwo cone springs when said springs are respectivelyin: the two socketsof the two knotting mechanisms, and which mechanism operates the two fingers of the two knotting .mechanisms. f Fig. 22 is a diagrammatic .view of the circuit which includes the two solenoids and the switch, shown inside elevation in the. open -p'osition,

which solenoids respectivelycontrol the two clutches that respectively operate the two mechanisms for raising the two knotter heads to the knotting positions. a i

,, Fig. 23 isa side elevation f thec ircuit closer,

shown in Fig. 22, and shown-in'solid lines inthe open position, and in dptted lines in theclosed. tPOSition, i

Fig. 24 is a plan view, some parts omitted, and

some'parts brckenawanof the two spinner heads, and some of the; mechanism which operates, them,

the-spinner heads being shown in their innermost.-

positions respectively' operatively engaged with the ,two cone springs, disp osedrespectively in the two sockets Qffbhe two knotting heads;

Fig. 25 is a longitudinal, vertical-sectionalview,

' enlarged, of one of thespinner' heads and a portion' of the mechanism which spins it, and also 1 a portion of the mechanism which reciprocates it.

Fig. 26 is a fragment-a1 plan view, partly broken away, of one ,oigthe two clutch mechanisms for operating' thep two knottenmechanisms respecelevation of thejknotting gear 'knotting position. x 1

Fig. 31 isan'enlarged side view, partly-in el'ej-w 'vation and partly in vertical section .oi one of? tively, for raising the two knotter heads and operating the two knotting gears, shown in the re lease position.

Fig. 27 is a vertical section on the plane of the line 2'l21 of Fig. 26, showing the parts in the positions when the clutch which controls the operation of the knotter head, is in the released position, shown'in Fig, 26.

Fig. 28 is a view similar to Fig. 27, parts being broken away, and some omitted, the parts being shown in, the positions occupied by them when' theclutch is engaged, and the knotter head controlled. thereby is raised and the knot is being; 5 1

made.

Fig. 29 is an enlarged side elevation, parts broken away, of one of the cone spring holding fingers, and parts cooperating .therewith, the knotter headbeing shown lowered and the finger;

' in the open orrele'ased position.

' Fig. 30 is a view of the parts shown in Fig. 29, in side elevation, showing the knotter head raised.

to the knotting position and: the finger the:

closed position holding the cone spring in the clutch members, which carrythe two clutch:

pinsrespectively, the clutch pin, shownbeingl dis' posed in the position for engagement' with: the:

opposing clutch member, not shown; 1

Fi 32 is an enlarged perspective view"of thezclutch pin shown in Fig. 31.

Similar characters of reference desighatesiir i+ lar. parts in the different views;

The machine is provided with a main fra designated by the numeral I, in the giliifereir'iti- Views. Extending centrally lengthwise andlsupj; V

port'edby the frame I is a supporting pathway:

comprising ajchannell upon which are trans ferred the cone, springs A, as they pass fromia. coiling mechanism 3, which is one of usual type and is disposed at the right end of thema'ohin,

as viewed in Fig. 1, and as viewed at the left? in Figs. 4 and 5f ,l a I v ;'Ihe spring wire B from whichthe cone springs Aare made, is drawn from a, suitable source of supply and ied into the coiler 3'.whereit isf coiled to form' a cone spring where his severed irom the wire B by' a severing blade ,4 of the coiler-f3,

Fig; 1,'*at"which time the cone spring A is t deposited upon its outer periphery in the channel...

2. The cone spring A is then transferred for-g wardly without restraint by 'rolling'or slidingonits periphery .from its first position X in the: w

channel! 'to'two other positions Y and Z suecessively, Fig. 1, and eliminating the need of" I accessory. spring supporting.

grippers or I other means.

Com: SPRING TRANSFn mmc'Miicnemsivr The means for transferring the con springsiA along the channel 2 comprises 'theffollowingfdescribed parts. L i i 5 is a longitudinal bar supported centrally. and longitudinally above the channel :2 by vertical bars 5' disposed at the'ends respectively of the};

bar .5, and fastened'to the channel 12, Fig. 5.

Slidably mounted on the bar 5 are three slide membersfi which are reciprocated by a link .1

pivoted'to the upper end of an upright lever 8,.

pivoted-atits lower end ona cross barf 9, u a ported on the frame I, Figs.' 1, 2, 3, 4' and 5. 1

A roller l0 mounted on the lever 8"engagesa cam, ll fastened on a longitudinal shaft I2 ro--.

tatable at its ends inthe ir'amel. Onthe. shaft main driving it shaft 115 disposed.1 longitudinally "on the frarneml, Figs. '1, 2, 3, 4 :andn5.

Paddle operating lnechanis in Pivoted on the slide members- 6 so as to swing from the depending position, shown. in" solid lines in Fig. 1. and in Fig. 4 inwhichposition they are adaptedto. engage and push forwardly'the cone springs A from therpositions K 75 and Z, to a horizontal position, shown in dot-ted lines in Fig. 1, are three paddles l5. I

For swinging the paddles-I6- fr orn the depending position to the horizontal position, shown in V dotted lines in Fig; 1,.i-n wl-iicl'i'latter position they will cleancone springs A the followingdescribedinechanism is provided. i

A longitudinal shaft I1 is circumferentially'os- .cillatively mounted in bearings I8 respectively provided on the slide members ;6, l. Secured on the shaft II are-three collars l8 which respectively engageone set of ends of the bearings I8. Respectively engaging the iother-seti-of ends and rigidly securedonthe shaft Il are three cams 29 which respectively engage the .upper end portions of theupaddles I(i;.- When the shaft IT is turned in one direction: they will swing the paddles I6 from the depending position to'the horizontalgpositionshown in dotted lines. in Fig. 1. Three coil springs .2! respectively encircling the pivot axes-22 of the paddles it, normally swing "the-paddles I6 to thedepending position.

For oscillating the shaft I'I, it has fastened to itoneendofa longitudinal bar 1, the rear end of whichbar it? extends lengthwise intoa tubular shaft. oscillative in. bearings 25-and 26 respectively-mounted onthe bar and the travel; path2. The flatbar 23 engages and is slidable betweenxtwo rollers iit mounted in the enlarged front end of the tubular shaft 24. Fastened to the rearend of the shaft 24 a pinion 2 which meshes'with'a transverse rack EBJeClPI'OCQitiVS-ll'i a bearing 29 on the bearing 25. Tothe rack bar iB is pivoted alink td'Fig.

2, which is pivoted to the upper'end of a lever 3| carrying nearzits lowerend a roller 32', the lever 3| being pivoted by a bolt Site the bear ing 5, Fig. 2.

A transverse link 34 pivoted to the lower por- I tion of the lever 3| is-pivoted 'by a bolttfi to the upper'end ofzanleve r J35, which is pivoted at its lower end to the frame I. On the lever iit'nearits upper end is mounted a rollertl engaged 'by a cam 38 fastenedlon the drivenshaft I2. On the shaft I2 is fastened acamtil which engages the roller 32cm the lever 31, Fig. 2. The levers 3i and 35 aredisposed at opposite sides of the shaftlZ, so that when the shaftflii is rotated by the gears I3" and M, driven by the. main drive shaft I5, the levers 3i .36 will be swung, by the cams 39 and 38, so as topsoilalate the lever SI, and through the'link 3t reciprocating the rack 28.

The rack 28 in reciprocating will, when moved in one direction, through the pinion 2 f, turn the tubular shaft 26, by means'of the two rollers 24, in one direction, thus rotating the bar 23 and the shaft IT to cause the cams Rd to swing the paddles I6 to the horizontal position, show in dottedlines in Fig. 1.,

' ing the shaft I1 and paddles IE to the. right to the positions shown in Fig. 1.

' During the previous half turn of the drive shaft I5, thecams I38 and 35 will have caused the lever -3I to be swung, so as to operate thepinion 21, rack 28, tubular shaft 24, and bar 23 to 'turnthe bar I! to cause the. cams 2D to swingthe paddles I6 up, againstfthe tension ,of the springs 2!, so that'the paddles ifi will clear the cone springs A which are in the locations X, Y and Z.

.When the paddles in moving to the right, Fig. 1, have respectively passed these locations, or positions, the cam. M will be positioned to permit the lever 8 to retract. At this time the mechanism,

described, which turns the shaft M, will have positioned said shaft to release thecams 29 from the paddles I6, and thesprings ZI will operate to ing,,packing or other desired purpose.

swing, the paddles. to the position, shown in solid 1 lines inFig. 1," readyfor engaging the cone springs.

A to move the springs respectively forwardly without restraint fron the locations X, Y and Z.

Theretraction of the lever B is effected by a coil spring M, Fig. 2, one end of which is attached to the lever 8 and the other end to a projection .40 on the framel.

Thus, during the rotations of the drive shaft I 5, the cone springs A will each be passed by the paddles, It consecutively, from the coiling locationXtothlocation Y, where one end of the conespring is knotted; then to the position Z, where the other end of the spring is knotted; and finally from the position Z, for delivery Driving means for the main drive shaft 15 The m ain drive shaft I5 is located centrally longitudinally under the supporting path of travel 2 of the cone springs A. It is rotative in bearings I'E'rnohnted on the frame I, as shown in'Figs. 1

When the rack 28 moves in the opposite di- ,rection, the pinion Z'Lshafttt'ibar 23. and shaft I! turn andirelease the paddles ltffrom the cams 20, after which the coil springsHZI- will. swing' and 8. "As shown in Fig. 1, it has keyed on it adjacent toits front or right end a spur gear 4| whichflmeshes with a pinion l2, fastened on a longitudinal shaft 43 rotatable in bearings 41 and 55% mounted on the frame I.

'Fastened on the shaft 43 is a bevel gear 44 -which meshes with a bevel gear 45, which is fa tened on a transverse shaft 46, Figs. 1 and 5, rotatable onthe frame I. On the shaft 4% is also fastened, Fig. a sprocket wheel 55 connected by a c ambers!) with another sprocket wheel 5!, "above thesprocket wheel 45, and fastened ona transverse "shaft hfrotatably mounted on the frame I. On the shaft 52 is fastened a pulley 53 whichis connected bya belt 5-! with a pulley 55, above thepulley F93, and fastened on a transverse shaft 56. on the shaft 55 are fastened two pulleys 5'! andfih to which are respectively connected twobeltshs and Bi], to' whic'h are respectively connected two cone spring spinning mechanisms, tobe hereinafter described.

The shaft 5% is supported in two bearings C, mounted on any sliitable support, not shown. The shaft 56 may be driven by any suitable source of power, not shown, operating a, belt D, partly shown, engaging a pulley E fastened on the shaft fifip'fi'igsqfi, 6 and 7. 1 r

for nest- CONE SPRING STOPPING MEANS p The following described means are provided for successively stopping the cone spring A at the location Y, where one end of the spring is knotted; and at location Z, wherethe other end of the spring is knotted. v I Referring to Fig. 1, GI designates a vertically slidable stop plate mounted in a transverse slot 62 extending transversely across the bottom of the channel 2, Figs. 1, 4, 8, 1 0,and 24.

Fastened to the stop plate 6| is a depending bar 63 havin a right angled portion 64, to which is attached the lower end 'of a coil spring 65, the upper end of which is attached to the channel2.

The coil spring 65 serves to normally holdthe stop plate 6 I, elevated, as shown in Fig. 1. v

A vertical bar 66 extends through a hole in the angle portion 64 of the bar 63, thus serving as a guide for the stop plate 6 I.

When the stop plate BI is in the raised position, shown in Fig. 1, it willstop the progress of a cone spring A striking against it, and traveling toward the left as viewed in Fig.1. A vertical link 61 is pivoted at its upper end by I a bolt ,68 to the stop plate 9 I the lower end of the link 61 is pivoted-to a transverse arm 69.0f a longitudinal shaft Ill rotatably mounted onthe frame I, Figs. 1, 4, 8, 10 and 20. 1 At one end of the shaft I is an armTI. At the other end of the shaft I9 is an arm I2, the function of which will be explained hereinafter.

4 To the arm TI ispivoted an upright link 13, the lower end of which is pivoted to one arm "I I of a bell crank lever pivoted on a pin F, Fig. 1, mounted inthe frame I, the other arm 15 of which has at its lower end'a roller I6 against which bears a cam Ti fastened on the main drive shaft I5,

. Figs. 1, 4 and 20. t V

-When the drive shaft I5 rotates, the cam I'I swings the ar [5 of the bell crank lever so as to swing the arm I4 upwardly, as viewed in Figs. 1 and 20, thus swinging the arm H .upwardly and the arm 59 downwardly to lower the stop plate 6| to the depressed position, shown in Fig. 8 and in dotted lines in Fig. 20.

Means for stopping the cone spring in position Z Slidably pivoted to the arm 12, by abolt 1a, is a lateral arm 79 of a longitudinal shaft 89, shown dotted in Fig. 1, on which shaft 80 is fastened a lateral arm ill, Fig. 20, pivoted to an upright link 82, Fig. l, pivoted by a bolt 83 to a vertical arm of an angle plateM fastened to a vertical stop plate 85 vertically slidable in a transverse slot 85' in the bottom of the channel 2.

Theangle plate 84 has a lateral extension 85, vertically slidable on a vertical guide rod 81 depending fromthe channel 2. To the extension 86 is fastened the lower end of a coil spring 88, the upper end of which is attachedto the channel 2, Fig. 1. Y I

By'the means just described, when the shaft I0 is rotated to force down the stop plate 6|, the

stop plate 85 will be forced downwardly against the tension of the coil spring 89,,andwhen the shaft 19 is turned in the opposite direction, the coil spring 88 will force the stop plate'85 to the upper position, shown in Fig. 1, in which it will stop a cone spring A in the location Z, in which location the other end of the cone spring A will be knotted.

Means positioning the cone spring A for knotting at one end in position Y When the cone spring A is stopped' in thelposition Y,1Fig. 1, it is positioned for knotting one 1 I of its free ends by a spinning mechanism'comprising 'thefollowing described parts.

brought against a sto'p'member and will then have its adjacent end coil knotted to the next coil of the cone spring A.

. able. The clutch member I atits inner side has a frictional bearing against the clutch head G. Bearing against the outer side of the clutch member H is a collar J against which bears the inner, end of a coil spring K, against the outer I end of which bears the inner end of an xternally j threaded collar L which is adjustably fitted in the internally threaded outer end of the clutchhead The spinner head as iscylindrical and has its front end converging and axially alined with the axisof the cone spring Am the location Y.

The spinner head, as shown in Figs. 4, 24 and 25 is fastened on the inner end of a square trans- Verse shaft 99 which rotates the spinner head in- I a bearing 9| on the inner end of a transverse. bar 92, the outer end of which is fastened to'a bearing 93 slidable on a square transverse bar Y 94 mounted on the frame I.

The transverse square shaft extends through v a tubular rotary clutch head G which is rotat-' ably mounted in the bearing 93 and which has fastened-on it a driven pulley 95 driven by the belt 59, already described.

Mounted in the clutch head G is a friction clutch designed to rotate the square rod 90 and the spinner head 89. prises the following described parts, Fig. 25.

A clutch member H is slidablyfltted on and r0 tatable with the rod 90. At its'inner side itbears against a collar comprising a clutch member I- through which the rod 90 extends and is. rotat G. A look nut M is fitted on the collar'L and bears against the outer end of the clutch head G.

Means for reciprocating the spinner heads For moving the spinner head 89,.and the mechanism connected with it outwardly on the bar 94' from the operativepositionof .thespinner head,

the following described mechanism is provided.

A link 96 is pivoted at one end'by a bolt '9IT'to the bearing 93, Figs. 4 and 24,the other end of the link being pivoted to one arm 98 of albell. crank lever, pivoted at its angle to a longitudinal shaft 99 mounted on the frame I Fig. ,8. The"; other arm IIII'I of the bell crank lever has on it' a roller IUI bearing against a cam I02, shown'in dotted lines in Fig. 8, and secured on the drive shaft I5.

For swinging the bell crank lever 98'-I00 to move the spinner head 89 inwardly to its -oper-' ative position, a coil spring'N is attached at one end to the lever arm I09 and, at itsotherend it is attached to the frame I. j Secured on the main drive shaft I5 at a distance in the rear of the cam I02 is a cam I93,- Fig. 8, which engages a roller I04 mounted on one arm I95 of a bell crank lever which is pivotally mounted on a longitudinal shaft I06 mounted onthe frame I. The other arm I01 being' employed to move outwardly from its operative 'position' anotherspinner head I 08, which, as will after The friction'clutch comwards be described, spins a cone spring Ato its proper .knotting positionwhen thecone spring .A

has reached the position Z, Fig; 1. i

-The spinner headIIl8 corresponds in construction and mode of op'erationto spirmer head .89... It is rotatable ona bearing. I09 Figs. 4, 8. and 24h mountedon a transverse-bar IIII fastened at its outer end to a bearing III slidably reciprocative on a transverse bar H2, similar to thebar 94, and fastened at its ends toythe frame I. p

A square transverse shaft, or rod, H3, is fastened at its inner end to the spinner head 108, which is rotatable in a clutch head H5, Fig. 24. The clutch head I I has mounted onvit avpulley Hdengaged and driven by-the'belt'iill, beforexdescribed. The clutch head I l5c-is similar to the clutch head G in structure and" mode of .operation. It contains within it friction clutch mechanism corresponding to that shown in Fig. 25, for.

rotating the square rod I I3 and the spinner head The spinner heads 89-and 108,:asshowninFig.

24; facein opposite directions andare respectivelye at opposite sides of the bar 5 over thechannel 2. Likewise the clutchheads G and H5 are respec-.

tively disposed at opposite sides of the channel 2. -To swing the bell crank lever I05-I,fl'l in a direction opposite to that in which it is swung by the-cam I03, a coil spring 0 is attached at one.

end :to the arm I95 and hasits other end attached: 3d,

tothe frame I, Fig.8. Normally thetension of the springs N and O tend toforce the spinner heads-39 and I08 into the operative positions engaged with the. conesprings A, as shown in Fig.

' 24. The cams I02 andv I03 effect by the mechanisms described, the movement outwardly, simultaneously, from their operative positions; the spinner heads 89 and I08, to provide clear spaces in the locations -Y and Z to receive the -cone springsA which are propelled by the paddles I6.

to said locations. 1.. H

p A link 96 pivoted to the upper end of the arm It'd, ispivoted by a bolt 91' tothe bearing II I,

similar tothe bearing 93.

TH]; KNorrmG MiscH NIs s. v p

There are two knotting mechanisms, respectively located atthe locations Y and Zsat opposite sides of the channel 2 and respectivelyialined with-the spinner heads 89 and I08, Fig. 24.

fastened to .another. angle. plate I 24 stop abutment us; Fig.ple,whieh,.ahutmentwill hOldi the cone: spring Asrrom =furthe1wrotation, at, which time the .fliCliiOIlfil clutch-17in .the clutch,

headiG will .sliptand the spinnerhe'adBQ ,will temporarily stopefromwrotatlng.

..Before knotting, theyconespringA is held firmly in position and-uisisizedginrdiameterat the. adjae cent end oithelconespringA, thisbeing effected by a slidable horizontal bar I20,.Figs. .9, 1.1.7.14 and;15,.sliclablefinagroove I2I-in theleit plate I II. .The. bar I29; passes through anxopening in the adjacent .side of the socket I. I 6,. and enga es thelouter .:periphery, of, the adjacent end coil -.o,f theicone spring A..and.orc.es the portion of the, coil which is engaged by the bar iZil, toward the, opposite portionroi the, socket H 6, thereby forcingzthe1.diametricallyropposite. portion of the, end,

coilfitightly againstsaidopposite portiondof the socket I.t5,\as viewedinzl igil l. This oomprea. sion oftthecone-springtA by theioar I20, properly sizes the endcoillso compressed. :The bar. I251. is forced inwardly by ,a

and pivotedatits other end .to anangle plate I23 fastened to the'iramei, Fig.4..

:Between its pivcrtkpointsgthebar an, upward projection H35, in which is slidablyiand loosely mounted a longitudinal :r-od. I 26, at; the

outer side of the adjacent-plate H 8.. Acoil spring I21. encircles therrodyifidland ,bearszat: one end.

against the projection, iZiizandagainstl a nut I28 on therodfltihy .7 ,7

.The rod 126 is pulled against the .tension of the.

l sp g. :21 by the upper end .ofqa .leverIZS,

Figs; 4 and 10; pivoted: to the. rod I26, and pivoted The two knotting mechanisms arealike with respect to construction andmode of operation, so

vertical rod i'ae wnichzhas at its upper end a nut fastened at their; outer edges to the. two, plates Hi, Figs. 4, 9, 11, 14, 15 and 24.

- When the spinner head;- 89 forceshthe cone spring Ainto the socket H6 and against: the plates H"! at the rear end. of .the socket, .IEig...2l, the spinner head:.89..will. rotate byrfrictionuthe cone spring A in a clockwisedirection, as viewed in Figs. Hand 24; until the adjacentfree end belowithe rodto theiramellbyyabolt 35, Fig. .10.

The lever" I29 has fastened to it below .thebolt I-.3Il,-.a lug I3I :engagedxbya projection I31 one lever :I33,.L.Eig. .m,'. ;which.ile,ver J33 tpivots on a longitudinal shaft I33, liiigsniiv andll, Qscillative in atbearing: I35 on the inner side of ,the supporting plateIIS. f a 1 3 When the lever I33 is swun as .will later be: described, .to bring the. proiection I32 .against the lug I3I on thezlever 129, the latter Wi11.be.m Yed 1 at itstupper. end to theleft, as viewed. in Fig. 10.,

thusamoving the'rod 426 to .the,left,,as viewed in Fig. 10,. andtto theright, .as viewed in Fig., 9, thuscausing thecoil-spring 12 1 on the rod I26,.tq push against the projectionl25 so asgtoswing; the bar I22 so that it pushes the slidable sizing bar I20 into the socket 'I'IB, Figs. l4 and15, engaging the inner end of thesizingbar ,IZIJ with the outer coil oftheoone spring A, :thus sizing saidcoil-indiameter.

.Means' for w nging the lever 133 1 The lever I-33is :shown in end. elevation: in Fig.

10H andin plan viewsin, :Fig. A, an in side eleva tion, broken away, in Eig., 8. Z In F g. 4, the two levers I33 of tlie 'two'knotting mechanisms, are both shown at. oppo'site'sides. of theichannel Z.

Thelever I33'has a holelinto. whichiextends a pin -I-3'I mountedmn asleeveaIBSJslidahlepna I-40* against whicli'hears .Lthe ;.upper end of a coil spring .14 Lethe vlower endgof iwhich b ars against the-uppependof thesleeve #33, Figs. 8 and ;10.

The lower end of the rod I3$ has an l2 bearing against the lower end or another sleeve I43 having a lateral pin M4 'e'ngaginga lever I45 fastened. to. atlongitudinal, scil tivev sha t .146 mounted-nu bearings al on .;the tram I; Figs,

ofthe cone spring A:willbewbroughtagainst, a 515 Sand 10.1,.

transverse bar I22,xEigs. 4,: 9 and-:11,. pi v,oted.t:o the. barLI2IL which .is 

